Triangular bracket self-locking type manual lifting bracket pull type bolt self-locking

Time：2020-07-13 View：

 

1 The principle of self-locking bolt
The self-locking of the bolt is based on the model construction characteristics of the mast cylinder block, using the shear force between the full-length outer key of the outer wall of the cylinder block and the bandage spring pin on the sleeve to conduct mechanical positioning for each section of the mast. Its positioning function depends on the data and cross-sectional area of the key. Because the information of mast cylinder block is aluminum alloy, and the cross-sectional area of the key is very small, this kind of bolt self-locking equipment is only suitable for small and medium-sized mast with light load.

 

2. For the selection of two kinds of plug-in self-lock
Direct-pull self-lock is usually suitable for the mast whose initial height is below 1.6m, and the slide self-lock is suitable for the mast whose initial height is above 1.6m.

 

3 for the principle of lock lock
The brake lock is completed by the friction between the brake and the mast, which is equivalent to wheels and brake equipment. When using the lock to lock the mast, you need to tighten the lock. The required braking force depends on the size of the load. The tighter the spinning, the greater the braking force. We will provide specific data after the calculation according to the selected mast and its load. In actual operation, the torque wrench can be used to understand whether the braking force is satisfied with the load request. Wrench or torsion wrench is the optional accessory, and the user needs to purchase the self-locking braking force of the lock separately. The calculation method is to choose the screw screw tightening torque formula.
In order to tighten the torque value, Nm
F Bolt accepts the Best clamping force, N;
d thread diameter, mm;
P is the screw pitch, mm
4 for the selection of two kinds of lock lock
Integrated Brake and split brake can achieve the same braking effect, and the difference lies in whether the planning can satisfy the request for the initial height, maximum increase and load of the mast. Under the same conditions, the initial height of the separating brake mast can be lower or higher. If you can provide specific needs, we will make specific plans.

 

 

Pneumatic lift rod (direct pull bolt self-locking)

 

[Product Introduction]
Self-locking mast is a mast with self-locking device added to the general mast. Through the self-locking device, the height of the mast can be maintained effectively and for a long time without using gas to maintain pressure.
At present, our company has designed two types of self-locking mast: Pull-type bolt self-locking mast (AX) and tie-type self-locking mast (AXT). Specifications include the number of segments, initial height, and maximum height.
Plug-in type self-locking mast is only suitable for small-sized mast with light load.
The bolt-type self-lock can be used not only for upright mast, but also for supporting frame mast.
You can choose the specifications you need from our existing products.
If there is no mast that meets your requirements in the existing specification table, you need to contact us and tell us the initial height, maximum height and load weight of the mast you want, and we will design it for you, generally, a drawing is provided to you by email within 48 hours.

 

[Technical description]
1 about the principle of plug self-locking
The self-locking of the bolt is based on the structural characteristics of the model of the mast cylinder block, using the shear force between the full-length outer bond of the outer wall of the cylinder block and the spring pin on the joint sleeve to conduct mechanical positioning for each section of the mast. Its positioning effect depends on the material and cross-sectional area of the key. Since the material of the mast cylinder is aluminum alloy, and the cross-sectional area of the keys is very small, the plug self-locking device is only suitable for small and medium-sized mast with light load.
2. About the selection of two kinds of plug-in self-lock
Direct-pull self-lock is generally applicable to the mast with the initial height below 1.6m, and the slide self-lock is applicable to the mast with the initial height above 1.6m.